I tuned the car today, found out my popping on decel issue was a result of the timing being way too far advanced in the decel region.
http://www.youtube.com/watch?v=6eU9UyHn1dw <<< block long burnout
I got my schedule 10S bends to make up my turbo headers.. I'm making a CNC program for the flanges, which I will give to my friend to cut.